UPK 185

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0.86 UTI
0.79
CN
1.0
Cdens
1.0
CC3
0.75
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 217
Radius (P>50% members) 14.3 [arcmin]
  • CN 0.79 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.75 Well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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UPK 185 is a rich, very dense object of very high C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is well-studied in the literature.

Note: This object shares a large percentage of members with 3 later reported entries. See table with shared members information.

Close Low extinction Near-solar metallicity Young

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for UPK 185 in: SciX Simbad
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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 346.411 49.377 1.794 2.641 -1.955 -11.024
Li et al. 2025 346.424 49.376 1.786 2.636 -1.929 –
Almeida et al. 2025 346.356 49.36 – – – –
Alfonso et al. 2024 -13.559 49.38 1.771 2.64 -1.95 –
Zhang et al. 2024 346.408 49.367 – – – –
Hunt & Reffert 2024 346.408 49.367 1.789 2.646 -1.933 -12.297
Cavallo et al. 2024 346.465 49.386 1.791 – – –
Hunt & Reffert 2023 346.408 49.367 1.789 2.646 -1.933 -12.297
He et al. 2022 346.427 49.392 1.796 2.642 -1.955 –
Tarricq et al. 2022 346.448 49.405 1.79 2.633 -2.005 –
Dias et al. 2021 346.356 49.36 1.788 2.639 -1.935 -10.817
Cantat-Gaudin et al. 2020 346.424 49.376 1.786 2.636 -1.929 –
Cantat-Gaudin & Anders 2020 346.437 49.377 1.784 2.641 -1.919 –
Sim et al. 2019 346.428 49.377 – 2.66 -1.93 –

💡 Note: The UCC values are estimated from its identified members.

Reference Year Dist [kpc] Av [mag] DAv [mag] Age [Myr] [Fe/H] [dex] Mass [Msun] Bfr BSS
Li et al. 2025 0.54 0.43 – 97 0.030 – – –
Almeida et al. 2025 0.55 0.43 – 219 – 210 – –
Alfonso et al. 2024 0.57 0.45 – 97 0.116 – – –
Zhang et al. 2024 – – – – -0.066* – – –
Hunt & Reffert 2024 – – – – – 246* – –
Cavallo et al. 2024 0.57 0.60 – 105 0.180 – – –
Hunt & Reffert 2023 0.53 0.27 0.76 129 – – – –
He et al. 2022 – 0.50 – 79 – – – –
Tarricq et al. 2022 0.56 – – 74 – – – –
Dias et al. 2021 0.55 0.43 – 219 0.117 – – –
Cantat-Gaudin et al. 2020 0.57 0.45 – 71 – – – –
Cantat-Gaudin & Anders 2020 0.55 – – – – – – –
Sim et al. 2019 0.55 – – 89 – – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 171 100.0 346.41 49.38 1.79 2.64 -1.99 -11.02 0.08
FoF 2275 61.8 346.45 49.38 1.8 2.63 -1.95 -11.11 0.0
CWWDL 14300 23.0 346.43 49.39 1.81 2.62 -1.93 -10.54 0.0

💡 Note: The % column shows the percentage of members that UPK 185 shares with each listed object.

Visualization
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UPK 185 UCC
UPK 185 HUNT23
UPK 185 CANTAT20
Galactocentric position diagram